Improvement in seed-drills



G. S. BALL.

Seedl-Dropper.

No. 19,808. Patented Mar. 30, 1858.

UNITED STATES PATENT OFFICE.-

GEORGE S. BALL, OF DAYTON, OHIO, ASSIGNOE TO BENJAMIN KUHNS, OF SAME PLACE.

IMPROVEMENT IN SEED-DRILLS.

Specification forming part of Letters Patent No. [9.808, dated March 30, 1858.

.To all whom it may concern:

Be it known that I, GEORGE S. BALL, of Dayton, in the county of Montgomery and State of Ohio, have invented a new and useiul improvement on the planter known as the Seed-Drill, the object of which improvement is to insure a regular and even distribution of seed; and I do hereby declare the following to be a full and exact description of the same, reference being bad to the annexed drawings, making a part of this specification, in which- Figure 1 is a perspective view of the middle slide, A; Fig. 2, a plan view of the same, and Fig. 3 a transverse section of the slides D A E in working position.

Corresponding characters in the several figures refer to the same parts.

A is the slide; B, the openings; 0, the clips on slide A. The said clips may be riveted or soldered upon the slide or formed by pressing up asection or portion of the slide. The slide A occupies a place between two other slides with corresponding openings. The clips 0 pass into the openings of the upper slide and present an uneven surface in the seed-hopper of the drill, the lower being theshut-ott' slide to stop the flow of seed from the seed-hopper. The quantity of seed to be distributed is regulated by the screw (I, attached to the slide A or the slide above it. By turning the screw 61 the openings B may be increased or diminished, and will be found uniform and allow the escape of an equal quantity from each opening.

I am well aware that slides are employed in seed-drills to regulate the distribution of the grain, and that said slides are employed in connection with stationary castings secured to the hopper or seed-box; but I am not aware that slides have been used with clips 0, passing into the openings above. The great diffieult-y to be overcome is the variations in the openings in slides in connection with stationary castings, which variations are caused by the expansion or contraction of the iron incident toachange in temperature, thereby allowin g the escape of a greater quantity ot'seed from one opening than another. I do not therefore claim the upper or lower slide, such having been used before; but

What I do claim is The slide A, with the attachment of the clip 0, in combination with the slides D and E, the whole being arranged and operated in the manner and for the purpose herein set forth.

GEO. S. BALL. [L. s.] Witnesses:

FREDERICK S. SAGE, JOHN GLovER. 

